Engine-cooling system



H. (J. VERHEY.

ENGINE COOLING SYSTEM.

APPLICATION FILED FEB. 10, 1911.

2 SHEETb-SHEE1 I- I l avwemfoz c. VERHEY.

ENGI NE COOLING SYSTEM.

APPLICATION FILED FEB. 10, 1917. I p 1 A25 1 5 1 a Patentedl Aug. 8, 11922.

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" essees 1- I S i es- ?!e e e Pei-tented nus-e; tees; v e :MfiIF-YI. 4 5- W for indicating the thermel condition otthe engine;v In this inst-, nce

. enemie nee fi e e w e in? inset.

. ff" m I ToaZZ'wrtamitmc-y0071mm}: I SQ top 01 ide e ,OliZQIlthl lon itudi e1 7 Be it-hnown that I, Huuennw C,- Vnnnn pertition, 'l fi constitiitingief bdftl eibin c e iis citizen of Hol a d i; M e We ee liq t vi uee cit-hu te sense Missouri, heve-invented -the telleng s 1G? ifilfpuig the pin m lwehs lh in egiia "wit scribed im rove nt n, r nginea While he part ti n be fie nd-the'p g 'ends ents 80v Systems. i E he see s; in the ie -i v 1 The n on ele e to will ng en 1 l lescopi n e 'ie is ere provided for bric ins, ystem r int rnal ommence-sew ee ieeet ee he etetioi i iii h is We s c It w nnses pei e h eneie in: ne Pi ewes see Lee-e th proueinentsin respefi't m themeens 9 99 5 .CWWLZWQIY i lll- $695K of the iston and the p aten-sin eehi e, wh eh-ie'p e eie y y ipplie i see-ii whereby a des a le e t et ee d e @if W139 i i i@b fi ome n t own; fective utilization, of he ee ng liqmd te hmugh e eedei; ipe ;20,fidin tin esobtsined. It also provides in conjunction $81, 51, t multiple i'celetiomfe, piuielitj; with the cooling system edventagepus m a bil' e S 01 9 i fi lile i' iid i t 1 e h eeeh e ye e bearings of the respective engine cylindef, oiiofinst to'the curyedspe 22 in the lg vggp These and other features and objects will, phrt 'ofi one of the grank-shgipbea ifigs 23 apparent to those skilled in theert ts t whence itp s upwa d thnough, piping 24 specification proceeds and trons e CQIlSldQiZ}: to e connection 25 on e, di p gu rd 26 h t d tion (it the annexed drawings, wherein: oger the crank. h roni' thi 'ei mpg a: Fig. 1 is fragmentary ye 'ticz l section 2 constituting, the stationzi y ni einbe one through one of the engine eyl1nde :s,sho ing the telescopic connect ons project u parts of the engine in eleve t on, thep ene war into the piston. ,lioi; thereti rn oi th of the section beingpsrellel with the enis l quid enothet, stationery is si nilsiniy so of the civenk-sheft; i mounted upo a connection. 25 on the dr p Fig. 2 is e vertical section on asnielie guard. etithe opposite ,the con ti scale taken at right angles: tn the crenkrod. From this end the '0 her correspondshaft; and ing connections'the' respectiye return; line engine. the sight chambers of a row of indie tops The'engine cylinde s 2 etc supported upon .36. cgn en ently located, upon. he outsi e of columns 3 rising iron), the beseythemtegwenvthe crank cese wells 5, the branches be ng ing space being enclosed by su t-able; wall contin ied by. pipes 37 lend ng fironi outlets members 4 and 5 torin n the crank case s at the otton s of said chambers to e netunn no The piston 6 1n esc cy'linde is conhes er 238i structed with e clQSnd 'chainber Zhenenthits T, e lower ends of the stationery tubes 27 top well for the circulation oi cooling ii nid, and 28 may be fiexibi y jointed to their upthis space being shown as eccessible T0111 ppits es indiceted, end their upper portions the bottom through an opening clos d. by a ereguided in tubules members 39' and 41-0 bolted plate 8. The piston-pin 9 need at projecting downward from longitudine l its ends in cross sockets in the sides of the openings in side illers il of the piston, trunk of the piston efiords the bee ing for wherein the sgiicl "tubular members nice the upper end of the connecting 1'0 10, the screwed as shown at 42 and locked by setlower end being connected es usual with sc ews e3; Stuiiing-boxes 4:4 are provided sit we the crank of the crank-shaft l1. the junction tornado: the sliding joints tight. The piston-pin is also hollow for the cir- The openings wherein the tubes 39 end cuiation of the cooling fluid in o 'de to cool e0 s e secured are extended u ward through the connecting rod hearing, this being ecthe piston-pin 9, itself, and t c portions of complished by forming the pin with a the illars 41 above the piston-pin into the loo thrtouglnboi'e 12 of substantial proportions, piston chamber '2'. Tubes 45 and d6 stendv the ends of which are closed by the solid ing in these upper openings, and preferably ends it and 15 of a screwed-in phi 16 or screwed at their lower ends into the menu;- otherwise. In its intermediate an major ber's 39 and 40, of which they may be cepoi'tion the said plug is refi l-96 as shown gerded as extensions, receive the upper ends tie g 5 is e p ne ide e e ii e iii the h eelie 2. p s in ets et he unneeeeds e5 pin which lies beneath the partition, while the portion of the opening leading upward from the top of the piston-pin chamber is larger than the tube, so as to afford an annular passage 48,- throu h which the liquid flows upwardly into t e piston cooling chamber. An opening 49 through the end of the partition remote from the inlet tubes enables the liquid to pass from the lower to the upper part. otthe piston-pin space and thus reach the passage 48 and the upper end of the tube 45-is closed to constrain the flow to take place in the manner in dicated, though manifestlya certain amount of direct flow into the said chamber might be permitted through a sufliciently restricted exit without unduly lowerin the circulation through the piston-pin. he annular passage 48 and a similar space 48" around the lower part of the tube 45 aflordsac ess of the fluid to theoutside of the pistonpin, whence by seepage or through the pro vision of suitable ducts it may reach the bearing surfaces, from which it is withdrawn through an opening 51 in the bush bearing 52 into a longitudinal channel 53 in the connecting-rod, finally escaping through ducts in the crank-shaft which are of familiar character and therefore not illustrated, into piping 54, which may return this portion of the liquid to the general source of supply'and thus back into circul'ation.

The 1i uid which emerges from the'upper end of t e' annular passage 48 enters the lower part of the piston cavity, whilethe exit therefrom through the open upper end of the tube 46 is adjacent the -top of the cavity. An annular passage 55 around this tube, between the same and the encircling wall of the opening wherein it stands atfords further access of liquid to the pistonpin bearing for lubricating purposes. The

portion of this opening which intersects the "piston-pin is defined by a short tube 56,

which is tightly seated at its ends in the top and bottom of the pin, and which prevents escape of liquid at this point from 'the interior.

The indicators 36 heretofore referred to are constructed to receive a removable thermometer"57 or other heat-responsive device, which may be inserted to ascertain the tem- "perature of the liquid passing through the respective branches of the cooling system. In this way a substantial checlr may be kept upon the condition of the bearings, and more particularly of the piston pin bearing, where-trouble is most likely to occur without other immediate indication, and to produce a noticeable rise in the temperature of :the cooling fluid. In addition to the readings obtainable with the ther mometer a serviceable indication of the condition of the liquid, and consequently of the bearings, is aflorded by the sightglasses 58 with which the fronts of the chambers are equipped and through which an oil mist. such as would be produced by a degree of heating of the liquid corresponding to a serious condition of the hearing is readily observable. A

What is claimed as new is:

1. In an internal combustion engine, the combination with a piston containing a cool ing space, a piston-pin mounted in the piston, and a crank-shaft bearing, of a cooling system organized to circulate liquid successively in cooling relation to the crank-shaft bearing, the piston-pin and through the interior of the piston.

2. In -an internal combustion engine. means for cooling the piston-pin bearing. comprising a hollow piston-pin included in the circulating system-of a cooling medium. and a battle wall in said pin establishing flow in two directions-within said pin.

3. In an internal combustion engine, means for cooling the piston-pin bearing, comprising a piston-pin having an interior c'avity with entrance and exit for cooling comprising a piston pin formed with a bore 7 providing a cooling chamber, a plug closing the opposite ends of the bore and having its intermediate portion reduced to form a battle structure.

6. In an engine vcooling system a piston containing a cooling chamber, a pistonpin, and a telescopic connection with the exterior portion of the cooling system including one or more tube members intersecting the piston-pin and projecting into the interior of the piston.

7. In an internal combustion engine, a piston and piston-pin cooling system inclu ing the combination of a piston containing a cooling chamber, a hollow piston-pin, and a telescopic connection with the exterior portion of the cooling system including a tube 'imember carried by the piston, projecting into and closed to direct communication with the piston chamber, and laterally comat Wall... .11.; i

essier.

'municating with the interior of the pistonpin, and a passage connectin said interior of the" piston pin with the piston chamber.

8. In an internal combustion engine, the combination of a piston having a cooling chamber, a hollow piston-pin, a closed-end tube carried by the piston and passing through the pin into said chamber and having a lateral opening communicating with the interior of the pin, a stationary tube telescopically entering said closed-end tube, a passage in the piston between the interior of the pin and the cooling chamber of the piston, and telescopic connections to said chamber.. a

9. In an engine cooling system the combination of a piston containing a cooling chamber, a hollow piston-pin, a tube carried by the piston intersectingsaid pin and extending into the piston chamber, said tube being in communication with the interior of the pin. a stationary tube entering said pistoncarried tube, and an annular passage around the latter tube connecting the interior of the wrist-pin with the piston cooling chamber.

10. In an engine cooling system, the combination of a piston having a cooling chamher, a hollow piston-pin, a partition therein defining a circuitous course for the cooling medium, the piston and in having an opening extending upward t erein parallel with the axis of'the piston, a stationary upwardprojecting tube forming part of the external circulatory system entering said opening, a closed-top tube mounted in the piston receiving the end of the stationary tube and establishing communication between the same and the interior of the piston-pin at one side of the partition, and a passage between said interior and the piston chamber at the other side of the partition.

11. In a multiple cylinder internal combustion engine having a plurality of cylinders and a plurality of bearings appurtenant respectively to said cylinders, means for circulating liquid in cooling relation to said bearings, and an indicating means in the outflow from the circulation to the bearing pertaining to each cylinder whereby the engineer may determine the relative temperature of the bearings in the engine.

12. In a multicylinder internal combustion engine, a circulatory system for cooling fluid having multiple branches including the piston-pin bearings of the several engine cylinders and a series of indicating means connected in the external portions of said branches adapted to indicate the heat condition of the bearings of the respective cylinders.

13. In an internal combustion engine, the combination with a piston containing a cooling chamber, means for circulating coolin fluid, a piston pin mounted in the piston and having within it a circuitous passage one end of WhlOh is in communication with the cooling fluid circulating means and the other with the piston cooling chamber, and means for compelling substantially all the cooling fluid for the piston to pass through the circuitous passage in the iston pin.

In testimony whereof, specification.

antenna 0. veneer.

are

have signed this 

